User manual

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versions of the film itself (e.g. EBT3F or EBT3P) or scribed onto the patient film with pen
by a user at the time the film was exposed. The fiducial marks delineate the in-plane
and transverse axes of the treatment system as indicated by the projection of the light-
field onto the film. When using a film with pre-punched fiducial holes the marks are
lined up with the crosshairs in the lightfield, or the film is placed onto the registration
pins of a GafChromic
QuiCk Phantom and the registration marks on the outside of the
phantom then are aligned with the crosshairs. Rough alignment, manually
Observe the thumbnail images. Depending on the orientation used for scanning the
dose map film the
image could be
rotated or flipped
relative to the
treatment plan.
Observing the
images in the
example case a
rough alignment
could be achieved by rotating the dose map by 90° counterclockwise and then flipping it
right-to-left. Note: If the thumbnail images are indistinct, then click on the dose map
image and then the treatment plan image to display them at full size in the Image
Panel).
For the example, click on the patient film image
to display it in the Image Window and then
click the icon in the toolbar to the left of the
Image Window to use the Flip and \Rotation
tool. Select “Rotate left 90°”, then reactivate
the tool and “Flip horizontally” to achieve
rough orientation